1. INESCOP – Footwear Technological Institute, Elda, Spain
2. Mikrobiologisches Institut, University of Tübingen, Auf der Morgenstelle 28, D-72076 Tübingen, Germany
3. Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, D-38124 Braunschweig, Germany
4. University of Alicante, Departamento de Fisiología, Genética y Microbiología, Alicante, Spain